Affiliation: | 1. Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;2. Department of Clinical Oncology, Royal Stoke University Hospital, University Hospital North Midlands NHS Trust, Stoke‐on‐Trent, United Kingdom;3. Department of Radiation Physics, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;4. Department of Biostatistics, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;5. Department of Otolaryngology – Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;6. Division of Medical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada |